<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .top{
            width: 1000px;
            height: 90px;
            position: relative;
        }
        .down{

        }
        .arr-l,.arr-r{
            width: 40px;
            height: 40px;
            background-color: red;
            position: absolute;
        }
        .arr-l{
            left: 0;
            top: 50%;
            margin-top: -20px;
        }
        .arr-r{
            right: 0;
            top: 50%;
            margin-top: -20px;
        }
        .down{
            width: 1000px;
            height: 150px;
            background-color: black;
        }
    </style>
</head>
<body>
    <div class="top">
        <img src="img.jpg">
        <div class="arr-l"></div>
        <div class="arr-r"></div>
    </div>
    <div class="down">

    </div>
</body>
</html>